Thoughts On Fat Shaming?

I'm curious to see what people think of fat shaming. This is just my opinion. I was raised to be nice and if there's nothing nice to say then don't say it. There's a way of talking to people and I'm sure you can be nice. After making an effort to help someone lose weight and they keep denying it then leave them be. You can come up with anything and they will have a million and one excuse for it.